package com.itheima.reggie.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@Slf4j
@RestController
@RequestMapping("/category")
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    /**
     * 新增分类
     * @param category
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody Category category)
    {
        log.info("category:{}", category.toString());
        categoryService.save(category);
        return R.success("新增分类成功");
    }

    /**
     * 分页查询
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page> show(int page, int pageSize)
    {
        Page<Category> categoryPage = new Page<>(page, pageSize);

        //设置条件构造器，按照sort排序
        LambdaQueryWrapper<Category> lambdaQueryWrapper = new LambdaQueryWrapper<>();
        lambdaQueryWrapper.orderByAsc(Category::getSort);

        categoryService.page(categoryPage, lambdaQueryWrapper);

        return R.success(categoryPage);
    }

    /**
     * 根据id删除分类
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String> delete(Long ids)
    {
        log.info("删除分类{}",ids);

        categoryService.remove(ids);
        return R.success("分类信息删除成功");
    }

    /**
     * 根据id修改分类信息
     * @param category
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody Category category)
    {
        log.info("修改分类信息:",category);

        categoryService.updateById(category);
        return R.success("修改分类信息成功");
    }

    /**
     * 添加菜品时，通过下拉列表获取数据
     * @param category
     * @return
     */
    @GetMapping("/list")
    public R<List<Category>> getDish(Category category)
    {
        log.info("请求的类型为：{}", category);

        if(category != null)
        {
            LambdaQueryWrapper<Category> lambdaQueryWrapper = new LambdaQueryWrapper<>();
            lambdaQueryWrapper.eq(category.getType() != null, Category::getType, category.getType());
            lambdaQueryWrapper.orderByAsc(Category::getSort);
            lambdaQueryWrapper.orderByAsc(Category::getUpdateTime);

            List<Category> categories = categoryService.list(lambdaQueryWrapper);

            return R.success(categories);
        }
        else
            return R.error("类别不存在");

    }

}
